2 * Copyright 2001-2007 Internet2
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * SAML2MessageDecoder.cpp
20 * Base class for SAML 2.0 MessageDecoders.
24 #include "exceptions.h"
25 #include "saml2/binding/SAML2MessageDecoder.h"
26 #include "saml2/core/Protocols.h"
27 #include "saml2/metadata/Metadata.h"
28 #include "saml2/metadata/MetadataProvider.h"
29 #include "util/SAMLConstants.h"
31 #include <xmltooling/logging.h>
33 using namespace opensaml::saml2md;
34 using namespace opensaml::saml2p;
35 using namespace opensaml::saml2;
36 using namespace opensaml;
37 using namespace xmltooling::logging;
38 using namespace xmltooling;
41 void SAML2MessageDecoder::extractMessageDetails(
42 const XMLObject& message, const GenericRequest& request, const XMLCh* protocol, SecurityPolicy& policy
45 // Only handle SAML 2.0 messages.
46 const QName& q = message.getElementQName();
47 if (!XMLString::equals(q.getNamespaceURI(), samlconstants::SAML20P_NS))
50 Category& log = Category::getInstance(SAML_LOGCAT".MessageDecoder.SAML2");
53 const saml2::RootObject& samlRoot = dynamic_cast<const saml2::RootObject&>(message);
54 policy.setMessageID(samlRoot.getID());
55 policy.setIssueInstant(samlRoot.getIssueInstantEpoch());
57 log.debug("extracting issuer from SAML 2.0 protocol message");
58 const Issuer* issuer = samlRoot.getIssuer();
60 policy.setIssuer(issuer);
62 else if (XMLString::equals(q.getLocalPart(), Response::LOCAL_NAME)) {
63 // No issuer in the message, so we have to try the Response approach.
64 const vector<saml2::Assertion*>& assertions = dynamic_cast<const Response&>(samlRoot).getAssertions();
65 if (!assertions.empty()) {
66 issuer = assertions.front()->getIssuer();
68 policy.setIssuer(issuer);
73 log.warn("issuer identity not extracted");
77 if (log.isDebugEnabled()) {
78 auto_ptr_char iname(issuer->getName());
79 log.debug("message from (%s)", iname.get());
82 if (policy.getIssuerMetadata()) {
83 log.debug("metadata for issuer already set, leaving in place");
87 if (policy.getMetadataProvider() && policy.getRole()) {
88 if (issuer->getFormat() && !XMLString::equals(issuer->getFormat(), NameIDType::ENTITY)) {
89 log.warn("non-system entity issuer, skipping metadata lookup");
93 log.debug("searching metadata for message issuer...");
94 const EntityDescriptor* entity = policy.getMetadataProvider()->getEntityDescriptor(issuer->getName());
96 auto_ptr_char temp(issuer->getName());
97 log.warn("no metadata found, can't establish identity of issuer (%s)", temp.get());
101 log.debug("matched message issuer against metadata, searching for applicable role...");
102 const RoleDescriptor* roledesc=entity->getRoleDescriptor(*policy.getRole(), protocol);
104 log.warn("unable to find compatible role (%s) in metadata", policy.getRole()->toString().c_str());
107 policy.setIssuerMetadata(roledesc);
112 log.warn("caught a bad_cast while extracting message details");